move x-accel into local storage configuration

config.go

@@ -36,17 +36,18 @@ func (upstream Upstream) GetPath(orig string) (string, bool, error) {
 type LocalStorage struct {
 	Path                 string `yaml:"path"`
 	TemporaryFilePattern string `yaml:"temporary-file-pattern"`
+
+	Accel Accel `yaml:"accel"`
 }
 
 type Accel struct {
-	EnableByHeader      string   `yaml:"enable-by-header"`
-	ResponseWithHeaders []string `yaml:"response-with-headers"`
+	EnableByHeader     string   `yaml:"enable-by-header"`
+	RespondWithHeaders []string `yaml:"respond-with-headers"`
 }
 
 type Storage struct {
 	Type  string        `yaml:"type"`
 	Local *LocalStorage `yaml:"local"`
-	Accel Accel         `yaml:"accel"`
 }
 
 type CachePolicyOnPath struct {